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From: Steffen Klassert <>
To: Xin Long <>
Cc: <>, <>,
	"Marcelo Ricardo Leitner" <>,
	"David S. Miller" <>
Subject: Re: [PATCH ipsec] esp: delete NETIF_F_SCTP_CRC bit from features for esp offload
Date: Tue, 23 Mar 2021 09:14:46 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Fri, Mar 19, 2021 at 03:35:07PM +0800, Xin Long wrote:
> Now in esp4/6_gso_segment(), before calling inner proto .gso_segment,
> NETIF_F_CSUM_MASK bits are deleted, as HW won't be able to do the
> csum for inner proto due to the packet encrypted already.
> So the UDP/TCP packet has to do the checksum on its own .gso_segment.
> But SCTP is using CRC checksum, and for that NETIF_F_SCTP_CRC should
> be deleted to make SCTP do the csum in own .gso_segment as well.
> In Xiumei's testing with SCTP over IPsec/veth, the packets are kept
> dropping due to the wrong CRC checksum.
> Reported-by: Xiumei Mu <>
> Fixes: 7862b4058b9f ("esp: Add gso handlers for esp4 and esp6")
> Signed-off-by: Xin Long <>

Applied, thanks Xin!

      reply	other threads:[~2021-03-23  8:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-19  7:35 Xin Long
2021-03-23  8:14 ` Steffen Klassert [this message]

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